Seal-lock.



NO MODEL.

WH s1 ease:

i .ff/....53

SEAL LGGK.

PATNTED SEPT. 22, 1903.

D. E. MGLAUGHLIN.

APPLICATION FILED AUG. 28. 1902.

2 SHEETS-SHEET 1'..

atto/Luego 510.739,701. PATBNTED s212122, 190s.

D. E. MULAUGHLIN.

SEAL LUCK APPLIGATION FILED AUG. 28| 1902.

2 SHEETS-SHEET 2.

N0 MODEL.

me bums PETERS oo., moro-umh, wAsHiNm'Qn. o. c;

in their locked position.

ivo. 739,701;Y

UNITED STATES Patented September 22, 190.'

PATENT OFFICE.-

noRsEY E. MCLAUGHLIN, 0E TAcoMA, wAsnmeroN.

s EA'L- LOCK.

SPECIFICATION forming part of ALetters Fatent No. 739,701, dated September 22, 1903. 4Application filed August 28, 1902. SeralNo. 121,339. (No model.)

To Aall whom t may concern:

Be it known that I, DORSEY E. MOLAUGH- Car Doors; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same.

This invention relates to improvements in door-locks, and' is especially designed for sealing doors, particularly those in use upon cars, such as freight-cars, baggage-cars, express-cars, and the like.

1t consists in a lock having a locking member and a sealing member, the locking member dropping into its locked position opposite the door or into its unlocked position and the sealing member accommodating itself to the positions assumed by the locking member.

It also consists in certain other novel constructions, combinations, and A arrangements of parts, as will be hereinafter fully described and claimed.

In the accompanying drawings, Figure 1is a side elevation of a portion of avcar and a car-door, showing the lock in its locked posi-'V tion. Fig. 2 is a transverse sectional view through the side of a car and through the casing inclosing the lock, the parts being shown Fig. 3 is a similar view with the parts shown in their unlocked position. Fig. 4 is a horizontal sectional view through the lock.

The lock forming the subject-matter of the present invention, while applicable to sliding doors of various kinds, is particularly adapted for use in connection with sliding doors of railway-cars. The lock mechanism is preferably inclosed in a suitable casing 1, which is let into the side of a car, so as to be flush with the same at its forward edge, the said casing extending inwardly and occupying a space between the outer siding 2 and the inner lining 3 thereof. Within the casing l is pivoted a locking member 4 and a sealing and 5o weather-excluding member 5.

` The locking member 4 is angular in shape and is pivoted, as at 6, near its lower edge.

The arms of the locking member extend approximately at `right angles to each other from the said pivot. When the lock 4 is in its unlocked position, itis resting upon its lower edge and is entirely within the casing 1, as clearly shown in Fig. 3 of the drawings. When the lock is in its locked position, as shown in Fig. 2, one of its arms extends at right angles from the casing 1 and into the path of the door '7. When the door is closed and the locking member is turned down behind it, the door cannot be slid to its open position. The locking-arm of the locking member is formed with a downwardly-projecting lug 8, which engages a correspondingly-formed recess 9 in a keeper-plate 14, which is secured to the rear edge of the door 7. The keeper-plate is also formed with a vertical dange 11, by which it is secured to'.

the door, whichl coincides with a portion of the locking-arm of thelockin'g member 4, and

coinciding recesses 12 and 13 are formed in the said locking member and keeper-plate,

respectively. When the arm of the locking member is turned downwardly, these apertures 12 and 13 will register with eachother,

:and any suitable locking-bolt may be passed through them for positively holding the locking member in its locked position. The recess 9 is formed in a horizontal iiange 14, projecting to one side of the vertical flange l1 of the keeper-plate. The inner arm 15 of the locking member is thickened to form a weight, the'weighted portion being so disposed with respect to the pivot 6 that it will tend to hold the locking member eitherin its unlocked or locked position. The sealing and weather-excluding member 5 is pivoted in the upper part of the casing 1 and at the forward edge thereof upon a suitable pin, as at 16. This sealing member is formedwith an elongated depending portion 17 and a short projecting nose or weather-excluding portion 18, extending at right angles to the portion '17. When the sealing member is forced inwardly in the casing 1 toa horizontal position, the nose 18 will extend downwardly from the upper end of said arm, serving to exclude weather from the casing and the parts, as shown in Fig. 3. When the parts are in theirlocked position, the projection 18 extends outwardly, as shown in Fig. 2, thus still protecting the parts of the locking mechanism. When the parts are in their .locked position, a hooked portion 19 upon the locking member 4 projects through a slot 20, formed in the lower end of the sealing member, its outer end extending beneath a slotted projection 21 on the sealing member. hooked projection V19l and 'the projection 21 are each formed with coinciding apertures, as at 22 and 23, respectively, which coincide with each other when the parts are in their locked position, so that a seal of any suitable kind may be attached to these projections, and the lock cannot be brought to its unlocked position Without breaking or mutilating such seal. When the parts are in this locked position also, the lower end of the sealing member 5, which is somewhat thickened, as at 24, will rest in an oifset or recessed portion 25, formed in the locking member 4, and further assist in holding the parts in their locked position. l The locking member 4 can also be further secured by a seal by placing such seal through the coinciding apertures 12 and 13. In this manner the locking-arm ofthe locking member 4 cannot be raised out of the path of the door without first breaking such seal.

In unlocking the door when the locking member 4 is raised the projection 19 will first slide out of the aperture 20, after which the sealing member can be forced inwardly, when the arm of the member 4 engages the same. The weight 15 of the locking member is so disposed that when the parts approach their unlocked position the weight will complete the movement and maintain the parts in this position until it is desired to lock the door again. locking member is drawn outwardly until the weighted portion comes forward to the pivot 6, When it will tend to complete the motion and maintain the parts in their locked position. of the member 4 is formed with a downwardly and outwardly projecting hooked portion 26, which may be engaged by the ngers or any suitable implement for drawing the locking member out of its casing.

It will be observed from the above description that the parts of the lock are comparatively simple in structure and yet are veryl eeclive for the purposes designed, andit is impossible to open the door when the locking member is out of its casing.

Having thus fully described my invention,

what I claim as new, and desire to secure by Letters Patent, is-

1. A door-lock, comprisinga locking member, and a coperating sealing member, the locking member being pivoted so that it may This- When the door is to be locked, the

The outer edge of the locking-arm A ing it either in its locked or its unlocked position, substantially as described.

2. A door-lock comprising a movable locking member formed with a locking-arm and a weighted arm having a recess,and a movable sealing member cooperating therewith, the locking-arm of the locking member being turned downwardly opposite the edge of the door to prevent its being opened, substantially as described.

3. A door-lockcomprising a locking member and a sealing member, a housing for in closing and pivotally supporting the same, a locking member having a locking-arm projecting therefrom and adapted to be turned down opposite the door to be locked, and a keeper-plate carried by the door, a projection on the locking member for engaging the keeper-plate, and means for locking the member to the said keeper-plate, substantially as described. v

4. A lock for doors comprising a pivoted locking member having a weighted arm and a locking-arm, the weight being so arranged with relation tothe pivotal point of said locking member that it will hold the same either in its locked or unlocked position, and means for positively fastening either the weighted arm or the locking-arm of the locking mem- `ber'when in its locked position with a suitable seal, substantially as described.

5. A locking mechanism for sliding doors comprising a locking member and a sealing member, the locking member having a locking-arm and a weighted arm, a hooked proj ection carried by the weighted arm, a sealing member pivoted above the locking member and formed with a recess for receiving the hooked portion of the locking member, a projection on the sealing member extending parlallel with the end of the projection on the locking member both of said projections being apertured for receiving a suitable seal which 'seal prevents the unlocking of the parts, substantially as described.

6. A locking mechanism for sliding doors comprising a pivoted locking member and a sealing member the sealing member having 4a projection extending therefrom for keeping weather away from theparts, and means for connecting the locking member and the sealing member by means of a suitable seal, substantially as described.

7. A locking mechanism` for sliding doors `comprising a pivotedlocking mechanism and a sealing mechanism, an inclosing casing for supporting the same, the said members entirely folding within the casing in their unlocked positions, a -hooked projection on the locking member for drawing the same out-- IOO IIO

In testimony whereof hereunto affix my signature in presence of two Witnesses. n

DORSEY E. MCLAUGHLIN.

Witnesses CARLl STRAUT, FRANK J. MILLER. 

